JPS6344995B2 - - Google Patents
Info
- Publication number
- JPS6344995B2 JPS6344995B2 JP59058162A JP5816284A JPS6344995B2 JP S6344995 B2 JPS6344995 B2 JP S6344995B2 JP 59058162 A JP59058162 A JP 59058162A JP 5816284 A JP5816284 A JP 5816284A JP S6344995 B2 JPS6344995 B2 JP S6344995B2
- Authority
- JP
- Japan
- Prior art keywords
- valve body
- gas
- switching
- housing
- valve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 239000012530 fluid Substances 0.000 claims description 25
- 238000010926 purge Methods 0.000 claims description 18
- 239000002184 metal Substances 0.000 claims description 6
- 229910052751 metal Inorganic materials 0.000 claims description 6
- 238000007664 blowing Methods 0.000 claims description 5
- 239000007789 gas Substances 0.000 description 59
- 239000000843 powder Substances 0.000 description 12
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 8
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 5
- 239000003245 coal Substances 0.000 description 5
- 229910052760 oxygen Inorganic materials 0.000 description 5
- 239000001301 oxygen Substances 0.000 description 5
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 239000000446 fuel Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000007670 refining Methods 0.000 description 4
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 3
- POIUWJQBRNEFGX-XAMSXPGMSA-N cathelicidin Chemical group C([C@@H](C(=O)N[C@@H](CCCNC(N)=N)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CO)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CCC(O)=O)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H]([C@@H](C)CC)C(=O)NCC(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CCC(O)=O)C(=O)N[C@@H](CC=1C=CC=CC=1)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CCCNC(N)=N)C(=O)N[C@@H]([C@@H](C)CC)C(=O)N[C@@H](C(C)C)C(=O)N[C@@H](CCC(N)=O)C(=O)N[C@@H](CCCNC(N)=N)C(=O)N[C@@H]([C@@H](C)CC)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CC(O)=O)C(=O)N[C@@H](CC=1C=CC=CC=1)C(=O)N[C@@H](CC(C)C)C(=O)N[C@@H](CCCNC(N)=N)C(=O)N[C@@H](CC(N)=O)C(=O)N[C@@H](CC(C)C)C(=O)N[C@@H](C(C)C)C(=O)N1[C@@H](CCC1)C(=O)N[C@@H](CCCNC(N)=N)C(=O)N[C@@H]([C@@H](C)O)C(=O)N[C@@H](CCC(O)=O)C(=O)N[C@@H](CO)C(O)=O)NC(=O)[C@H](CC=1C=CC=CC=1)NC(=O)[C@H](CC(O)=O)NC(=O)CNC(=O)[C@H](CC(C)C)NC(=O)[C@@H](N)CC(C)C)C1=CC=CC=C1 POIUWJQBRNEFGX-XAMSXPGMSA-N 0.000 description 3
- 238000004891 communication Methods 0.000 description 3
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 229910001882 dioxygen Inorganic materials 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 235000012255 calcium oxide Nutrition 0.000 description 2
- 239000000292 calcium oxide Substances 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 239000010419 fine particle Substances 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 239000012159 carrier gas Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 210000004907 gland Anatomy 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
- C21C5/28—Manufacture of steel in the converter
- C21C5/42—Constructional features of converters
- C21C5/46—Details or accessories
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
- C21C5/28—Manufacture of steel in the converter
- C21C5/42—Constructional features of converters
- C21C5/46—Details or accessories
- C21C5/48—Bottoms or tuyéres of converters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
- F16K11/08—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only taps or cocks
- F16K11/087—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only taps or cocks with spherical plug
- F16K11/0873—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only taps or cocks with spherical plug the plug being only rotatable around one spindle
- F16K11/0876—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only taps or cocks with spherical plug the plug being only rotatable around one spindle one connecting conduit having the same axis as the spindle
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/16—Actuating devices; Operating means; Releasing devices actuated by fluid with a mechanism, other than pulling-or pushing-rod, between fluid motor and closure member
- F16K31/163—Actuating devices; Operating means; Releasing devices actuated by fluid with a mechanism, other than pulling-or pushing-rod, between fluid motor and closure member the fluid acting on a piston
- F16K31/1635—Actuating devices; Operating means; Releasing devices actuated by fluid with a mechanism, other than pulling-or pushing-rod, between fluid motor and closure member the fluid acting on a piston for rotating valves
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/4238—With cleaner, lubrication added to fluid or liquid sealing at valve interface
- Y10T137/4245—Cleaning or steam sterilizing
- Y10T137/4259—With separate material addition
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/8593—Systems
- Y10T137/86493—Multi-way valve unit
- Y10T137/86501—Sequential distributor or collector type
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/8593—Systems
- Y10T137/86493—Multi-way valve unit
- Y10T137/86815—Multiple inlet with single outlet
- Y10T137/86823—Rotary valve
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/8593—Systems
- Y10T137/86493—Multi-way valve unit
- Y10T137/86863—Rotary valve unit
- Y10T137/86871—Plug
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Taps Or Cocks (AREA)
- Multiple-Way Valves (AREA)
- Carbon Steel Or Casting Steel Manufacturing (AREA)
Description
【発明の詳細な説明】
この発明は、溶融金属保持器への流体吹込み用
切換弁に関し、特に底吹き転炉炉内に主として精
錬段階の推移に応じて選択使用する複数種の流体
(互いに混合するのが好ましくない粉末を含むガ
ス流体)を択一的に吹込むときにガス種選択用の
選択弁として有利に用いられる切換弁について提
案する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a switching valve for injecting fluid into a molten metal holder, and in particular, a switching valve for injecting fluid into a molten metal holder, and in particular, a switching valve for injecting fluid into a molten metal holder, and in particular, a switching valve for injecting fluid into a molten metal holder. The present invention proposes a switching valve that can be advantageously used as a selection valve for selecting gas types when alternatively blowing a gaseous fluid containing powder that is undesirable to mix.
底吹式の転炉において多量のスクラツプを使用
して製鋼製錬する方法として、一部の炉底羽口か
ら、例えば石炭粉とメタンガスの混合物を吹込
み、それと同時に、残りの羽口から酸素ガスを吹
込んでスクラツプを溶解した後、流体通路に配設
されている切換弁の流路を切換えることにより、
それまで石炭粉を含むメタンガスが吹込まれてい
た羽口から、引続いて生石灰粉等を含む酸素ガス
を吹込み精錬する技術が、西ドイツ国特許公告第
2838983号や特開昭57−29521号等で提案されてい
る。 A method of smelting steel using a large amount of scrap in a bottom-blowing converter is to blow a mixture of coal powder and methane gas into some of the bottom tuyeres, and at the same time blow oxygen into the remaining tuyeres. After dissolving the scrap by blowing in gas, by switching the flow path of the switching valve installed in the fluid path,
A technology for refining by subsequently injecting oxygen gas containing quicklime powder, etc. through the tuyeres, which had previously been injected with methane gas containing coal powder, was published in the West German Patent Publication.
It has been proposed in No. 2838983 and Japanese Patent Application Laid-Open No. 57-29521.
この精錬法には、精錬段階の推移に応じて、炉
内に吹込む流体を変えなければならず、そのため
に切換弁が必要である。こうした要請に応えられ
るものとして、特開昭56−33415号として、次の
ような構造の切換弁が提案されている。すなわ
ち、「キヤリヤーガス内に浮遊する炭素を含有し
た微細粒燃料および酸素を鉄溶融浴内に導入する
装置において、
燃料供給パイプと酸素供給パイプと羽口パイプ
とを有するハウジング内に可動弁部材を配置して
おり、該弁部材が燃料孔断面または酸素孔断面を
開きそして供給パイプ内の酸素の圧力により動作
されることを特徴とする炭素を含有する微細粒燃
料を鉄溶融浴内に導入する装置。」がそれである。 This refining method requires changing the fluid injected into the furnace depending on the progress of the refining stages, and therefore requires a switching valve. In order to meet these demands, a switching valve having the following structure has been proposed in Japanese Patent Application Laid-Open No. 56-33415. That is, in a device for introducing fine particle fuel containing carbon suspended in a carrier gas and oxygen into a molten iron bath, a movable valve member is disposed within a housing having a fuel supply pipe, an oxygen supply pipe, and a tuyere pipe. A device for introducing carbon-containing fine particle fuel into a molten iron bath, characterized in that the valve member opens a fuel hole cross section or an oxygen hole cross section and is operated by the pressure of oxygen in a supply pipe. .” is that.
第1図は、上記装置(切換弁)の縦断面図であ
つて、2は可動弁部材、4はシール部、6は固定
弁部材、8はベローである。ところがこの切換弁
にあつては、可動弁部材2とシール部4との閉動
作の際、粉体を噛込むおそれがあることと、長時
間使用すると密閉性が悪くなつて2種類の含粉体
ガスの確実な切換えが不可能となるおそれがあ
る。さらに弁の切換えの際、混合を避ける必要の
ある2種類の含粉体ガス、例えば石炭粉を含むメ
タンガスと生石灰粉を含む酸素ガスの場合、切換
弁の内部において前記の2種類の流体が混合する
おそれがある。この場合かかる流体が混合する
と、ガス中の石炭が燃焼して切換弁が過熱するお
それがある。 FIG. 1 is a longitudinal sectional view of the above device (switching valve), in which 2 is a movable valve member, 4 is a seal portion, 6 is a fixed valve member, and 8 is a bellows. However, with this switching valve, when the movable valve member 2 and the seal portion 4 are closed, there is a risk of powder being trapped, and if the valve is used for a long period of time, the sealing performance becomes poor and two types of powder may be contained. There is a possibility that reliable switching of body gases may become impossible. Furthermore, when switching the valve, in the case of two types of powder-containing gas that need to be avoided from mixing, for example, methane gas containing coal powder and oxygen gas containing quicklime powder, the two types of fluids mentioned above mix inside the switching valve. There is a risk of In this case, if such fluids are mixed, there is a risk that the coal in the gas will burn and the switching valve will overheat.
さらに、その過熱によりシール部の変形、焼損
が生じてシール不良を招き危険となる。加うる
に、ベローズが吹込み粉体により摩耗し、穴明き
が生じて2種類のガスが混合して爆発するおそれ
すらある。 Furthermore, the overheating causes deformation and burnout of the seal portion, leading to seal failure and danger. In addition, there is a risk that the bellows will be worn out by the blown powder, causing holes and causing the two types of gases to mix and explode.
本発明の目的は、上記従来技術の問題点を解消
しガス種選択のための流路切換えに際して、2つ
の流体の混合が確実に防止でき、かつ流出側のガ
ス圧力が低下することのないような切換弁を提供
することにある。 It is an object of the present invention to solve the problems of the prior art as described above, to reliably prevent mixing of two fluids when switching channels for gas type selection, and to prevent the gas pressure on the outflow side from decreasing. The purpose of the present invention is to provide a switching valve that provides a suitable switching valve.
本発明の他の目的は、さらにガスに伴送される
粉粒物が弁体とハウジングとの間に噛込まれるこ
とがなく、耐久性に優れ長期間にわたつて十分な
密閉性を有する構造の切換弁を提供することにあ
る。 Another object of the present invention is to provide a structure that is highly durable and has sufficient airtightness over a long period of time, in which particles entrained by gas are not caught between the valve body and the housing. Our objective is to provide switching valves for
上記の本発明の目的を達成するための、本発明
の要旨とするところは、この明細書の頭書に記載
した特許請求の範囲に掲記したとおりである。以
下に本発明にかかる切換弁の具体的構成につき、
底吹き転炉へ、その炉底から2種の流体(含石炭
粉メタン→含石灰粉酸素ガス)を精錬段階の推移
に応じて択一的に吹込むときの例で説明する。 The gist of the present invention to achieve the above objects of the present invention is as set forth in the claims at the beginning of this specification. The specific configuration of the switching valve according to the present invention will be described below.
An example will be explained in which two types of fluids (coal-containing powder methane → lime-containing powder oxygen gas) are alternatively blown into a bottom-blown converter from the bottom of the furnace depending on the progress of the refining stage.
転炉内への上記2種の流体の択一的供給は、1
つの通路を通じ3入口1出口構造の三方切換弁を
使つて流路の切換えを行うことにより行うが、そ
の切換えに当つては上述したように該流体の混合
を阻止しなければならない。 The alternative supply of the above two types of fluids into the converter is as follows: 1
This is done by switching the flow paths through two passages using a three-way switching valve with a three-inlet and one-outlet structure, but when switching, it is necessary to prevent mixing of the fluids as described above.
そこで本発明の切換弁は、流路切換えに際し弁
体内の主通路にパージ用流体が導入され、この弁
体主通路内の流体がパージ用流体に置換されるよ
うに構成する。 Therefore, the switching valve of the present invention is configured such that when switching the flow path, a purge fluid is introduced into the main passage within the valve body, and the fluid in the main passage of the valve body is replaced with the purge fluid.
第2図、第3図において、12は弁体支承空間
を有するハウジングであつて、主ハウジング14
およびこれにボルト16によつて取付けられてい
るハウジングキヤツプ18を有している。20は
パツキン押えであり、ハウジングキヤツプ18に
ボルト結合させてある。主ハウジング14には、
弁体支承空間を外部に連通させるための第1流入
口22、第2流入口24が設けられており、それ
ら各流入口はそれぞれ異種のガスA,Bの供給管
路と連通する。またハウジング12の前記流入口
22,24と直交する位置には転炉へ向う流出口
26が設けられている。ハウジング12に設けた
弁体支承空間内にはボール形の弁体28が気密に
嵌合され、この弁体28は流出口の軸心方向にそ
れぞれ延在部30,32を有し、この延在部30
とハウジングキヤツプ18との間に設けたグラン
ドパツキン34を介して流出口26軸心を中心と
して回転可能に支持されている。弁体28には流
入口の一方と流出口と導通させるエネルギの主通
路36が設けられており、図示例で言うとその一
方の開口38aが流入口24と通じ他方の開口3
8bが流出口26に通じるように形成されてい
る。この流出口26は転炉の炉底羽口(図示せ
ず)に連通している。第1および第2の流入口2
2,24の内側には弁体28と接する部分を気密
に封じるために、それぞれ筒状のシートリング4
2,42′がシート押え44,44′を介して嵌挿
してあり、弁体外周面に対して押圧された状態下
に配設されており、ガスA,Bが後述の包被状隙
間80に流入するのが防止できるような構造とな
つている。 In FIGS. 2 and 3, 12 is a housing having a valve body supporting space, and the main housing 14
and a housing cap 18 attached thereto by bolts 16. 20 is a packing holder, which is bolted to the housing cap 18. The main housing 14 includes
A first inlet 22 and a second inlet 24 are provided for communicating the valve body support space with the outside, and each of these inlets communicates with supply pipes for different types of gases A and B, respectively. Further, an outlet 26 toward the converter is provided in the housing 12 at a position perpendicular to the inlets 22 and 24. A ball-shaped valve body 28 is airtightly fitted into the valve body support space provided in the housing 12, and this valve body 28 has extending portions 30 and 32, respectively, in the axial direction of the outlet. Zaibu 30
The outlet port 26 is rotatably supported around the axis of the outlet port 26 via a gland packing 34 provided between the outlet port 26 and the housing cap 18 . The valve body 28 is provided with a main energy passage 36 that communicates with one of the inflow ports and the outflow port, and in the illustrated example, one opening 38a communicates with the inflow port 24 and the other opening 3
8b is formed to communicate with the outlet 26. This outlet 26 communicates with a bottom tuyere (not shown) of the converter. First and second inlet 2
A cylindrical seat ring 4 is provided inside each of 2 and 24 in order to airtightly seal the portion in contact with the valve body 28.
2 and 42' are inserted through seat holders 44 and 44', and are placed under pressure against the outer circumferential surface of the valve body, and gases A and B are passed through the enveloping gap 80, which will be described later. The structure is such that it prevents water from flowing into the water.
また、ハウジング12には、流入口22,24
と同一面上の直交する位置にパージガス導入口4
0が開口させてある。この導入口40と流出口2
6とは、弁体28に設けた主通路36の一方の開
口38aが第1流入口22第2流入口24間へ
と移動のために回転する間、すなわち流路の切換
えが行なわれる間常時連通しており、切換えに当
り2種のガスA,Bが混合することがないように
工夫してある。 The housing 12 also includes inflow ports 22 and 24.
Purge gas inlet 4 is located perpendicular to the
0 is left open. This inlet port 40 and outlet port 2
6 means that one opening 38a of the main passage 36 provided in the valve body 28 rotates to move between the first inlet 22 and the second inlet 24, that is, while the flow path is switched. The two gases A and B are in communication so that they do not mix during switching.
そのために本発明にあつては、ハウジング12
内周面と弁体28外周面との間に、例えば該弁体
外周面の約半分を包囲するような包被状間隙80
を形成する。従つて、パージガス導入口40から
流入するパージガスは一旦この包被状間隙80内
に入り、続いて主通路の一端流入側開口38aを
経て他端開口38bを通過し流出口26に向い転
炉へ流れる。 For this purpose, in the present invention, the housing 12
Between the inner circumferential surface and the outer circumferential surface of the valve body 28, there is an envelope-shaped gap 80 that surrounds, for example, about half of the outer circumferential surface of the valve body.
form. Therefore, the purge gas flowing in from the purge gas inlet 40 once enters the envelope-shaped gap 80, then passes through the inflow side opening 38a at one end of the main passage, passes through the opening 38b at the other end, heads toward the outlet 26, and enters the converter. flows.
弁体28は流路切換えのために回転する。第4
図に弁体駆動装置48の一例を示す。この駆動装
置48は、一部で連通している並列する一対のシ
リンダ50,50′、各シリンダ50,50′中に
配設されたピストン52,52′、各ピストン5
2に連結された対向する側にラツク56,56′
を有するロツド54,54′、および上記ラツク
56,56′の両方と噛合するピニオン58を備
えている。一方弁体28の延在部30にはカツプ
リング60の一端が連設され、このカツプリング
60の他端にはピニオン58に連繋するピニオン
軸62が取付けられている。弁体28は、ラツク
付ロツド54,54′がピストン52,52′の往
復作動によつて動くときに、ピニオン58を回転
させ、カツプリング60および延在部30を介し
て従動回転するのである。 The valve body 28 rotates to switch the flow path. Fourth
An example of the valve body driving device 48 is shown in the figure. This drive device 48 includes a pair of parallel cylinders 50, 50' that are partially in communication, pistons 52, 52' disposed in each cylinder 50, 50', and each piston 5.
Rack 56, 56' on opposite sides connected to 2
A pinion 58 is provided which meshes with both the rods 54, 54' and the racks 56, 56'. On the other hand, one end of a coupling ring 60 is connected to the extending portion 30 of the valve body 28, and a pinion shaft 62 coupled to the pinion 58 is attached to the other end of the coupling ring 60. The valve body 28 rotates the pinion 58 when the rack rods 54, 54' move due to the reciprocating action of the pistons 52, 52', and is driven to rotate via the coupling 60 and the extension 30.
第5図の1〜12は、流路切換え作動時の弁体
28回転に伴なう主通路36と各流入口22,2
4、パージガス導入口40との関係を説明する図
である。図示例は、Aガスが転炉へ導通している
状態からBガスに切換わる過程である。弁体駆動
装置48を作動させると、最初の状態1である第
1流入口22と主通路入側部開口36aとの完全
な連通状態は徐々に不完全なものとなり、図示4
の状態でAガスの転炉への供給は完全に止まる。
この状態では弁体28を包囲するように形成した
包被状間隙80内にパージガス導入口40を通じ
てパージガスが充満させてあるので、主通路36
内はパージガスで充されており、前記Aガスはほ
とんど完全に排除された状態である。この状態は
図示9まで続き、図示10まで回転するとパージ
ガスの一部はBガスに置換わり、次第にその量を
増して、図示12の段階で完全にBガスだけにな
る。BガスからAガスに切換えるときは、ピスト
ン52,52′を逆に動かすことにより、図示の
10→1に向けて運転すればよい。 1 to 12 in FIG. 5 indicate the main passage 36 and each inlet port 22, 2 as the valve body 28 rotates during flow path switching operation.
4 is a diagram illustrating the relationship with a purge gas inlet 40. The illustrated example is a process in which gas A is switched to gas B from a state in which it is conducted to the converter. When the valve body drive device 48 is operated, the initial state 1 of complete communication between the first inlet 22 and the main passage inlet opening 36a gradually becomes incomplete, and the state shown in FIG.
In this state, the supply of A gas to the converter stops completely.
In this state, the enveloping gap 80 formed to surround the valve body 28 is filled with purge gas through the purge gas inlet 40, so that the main passage 36
The inside is filled with purge gas, and the A gas is almost completely removed. This state continues until 9 in the figure, and when the rotation reaches 10 in the figure, a part of the purge gas is replaced by B gas, and the amount gradually increases until it becomes completely only B gas at the stage 12 in the figure. When switching from B gas to A gas, the pistons 52, 52' may be moved in the opposite direction to operate from 10 to 1 as shown in the figure.
かかる切換えの特色は、弁体28を包囲するよ
うに形成した包被状間隙80の作用にある。すな
わち、該間隙80内には炉内溶鋼の静圧に打ち勝
つに十分な圧力の好ましくはA,Bガス圧と等圧
に制御されたパージガス(Ar、N2等)が常時充
満しており、一定ガス圧制御の下でA,B両ガス
の混合が完全に阻止できる態勢下での切換えがで
きる。 A feature of this switching is the action of the envelope-shaped gap 80 formed so as to surround the valve body 28. That is, the gap 80 is always filled with a purge gas (Ar, N2, etc.) with a pressure sufficient to overcome the static pressure of the molten steel in the furnace, preferably controlled to be equal to the A and B gas pressures, Switching can be performed under constant gas pressure control so that mixing of both gases A and B can be completely prevented.
第6図および第7図は、この切換時におけるガ
スA,Bおよびパージ流体(本実施例ではガス)
Cの流量を示す経時変化である。図示の矢印の如
く回転するとガスAがガスBに切換わる途中の時
間でガスCが主通路36に供給され、この主通路
36内のガスがガスCに置換された後、ガスBが
主通路36に流れるようになり、ガスAとガスB
との混合が完全に防止される。また第7図に示す
ように、逆方向に回転させてもガスBがガスAに
切換わる途中でガスCが主通路36に供給され同
様にして主通路36内のパージが行なわれ、ガス
BとガスAの混合が防止される。 Figures 6 and 7 show gases A, B and purge fluid (gas in this example) at the time of this switching.
This is a change over time showing the flow rate of C. When rotating as shown in the arrow, gas C is supplied to the main passage 36 during the time when gas A is switched to gas B, and after the gas in this main passage 36 is replaced with gas C, gas B is supplied to the main passage 36. 36, gas A and gas B
Mixing with other substances is completely prevented. Further, as shown in FIG. 7, even if the rotation is made in the opposite direction, gas C is supplied to the main passage 36 while gas B is being switched to gas A, and the main passage 36 is purged in the same way, and gas B and gas A are prevented from mixing.
なお上記具体例の説明においては弁体28を一
対のシリンダーを組合わせた形式の駆動装置48
によつて回転させているが、本発明はこれに限定
されるものではなく、例えば弁体28を別途モー
タ駆動によつて回転させるようにしてもよい。ま
た上記説明は、切換弁10が底吹き転炉羽口に採
用されている例に関するものであるが、本発明は
これに限らず、他の溶融金属収納用容器、例えば
炉外精錬容器等にも2種類のガス等の流体の混合
をさける必要のあるケースにも採用することがで
きる。 In the description of the above specific example, the valve body 28 is replaced by a drive device 48 of a type that combines a pair of cylinders.
However, the present invention is not limited to this, and for example, the valve body 28 may be rotated by a separate motor drive. Furthermore, although the above description relates to an example in which the switching valve 10 is employed in a bottom-blowing converter tuyere, the present invention is not limited to this, and can be applied to other molten metal storage containers, such as an out-of-furnace smelting container. This method can also be adopted in cases where it is necessary to avoid mixing two types of fluids such as gases.
以上説明したとおり本発明の切換弁は、流路切
換えに際し弁体内の主通路にパージ用流体が導入
され、この弁体主通路内の流体がパージ用流体に
置換されるように構成されているから2種類のガ
スの混合が確実に防止される。また、切換中の羽
口ガス圧力低下のおそれが全く解消され、安定し
てガスの切換えができる。 As explained above, the switching valve of the present invention is configured such that the purge fluid is introduced into the main passage within the valve body when switching the flow path, and the fluid in the main passage of the valve body is replaced with the purge fluid. Therefore, mixing of the two types of gas is reliably prevented. Furthermore, the fear of a drop in tuyere gas pressure during switching is completely eliminated, allowing stable gas switching.
第1図は従来の弁の断面図、第2図は本発明の
具体例にかかる切換弁の断面図、第3図は一部を
切欠いて示す左側面図、第4図は弁体の駆動装置
の断面図、第5図1〜12はAガスからパージガ
スCを介在させてのBガスへの切換えのもようを
説明する図、第6図および第7図はガスA,B,
Cの流量の経時変化を示すグラフである。
10……切換弁、12……ハウジング、22…
…第1流入口、24……第2流入口、26……流
出口、28……弁体、30,32……弁体延在
部、36……主通路、40……パージガス導入
口、48……弁体駆動装置、80……包被状間
隙。
Fig. 1 is a cross-sectional view of a conventional valve, Fig. 2 is a cross-sectional view of a switching valve according to a specific example of the present invention, Fig. 3 is a partially cutaway left side view, and Fig. 4 is a drive of the valve body. A sectional view of the device, FIGS. 5, 1 to 12 are diagrams illustrating how gas A is switched to B gas with purge gas C, and FIGS. 6 and 7 are diagrams showing gases A, B,
It is a graph showing a change in the flow rate of C over time. 10...Switching valve, 12...Housing, 22...
...first inlet, 24...second inlet, 26...outlet, 28...valve body, 30, 32...valve body extension, 36...main passage, 40...purge gas inlet, 48... Valve body drive device, 80... Enveloping gap.
Claims (1)
ング内に、かかる流入口の1つと別に設けた排出
口との間を導通させる主通路を有する弁体を回転
可能に支承してなり、その弁体の回転によつて流
路の切換えが行なわれるよう構成された切換弁で
あつて、 ハウジングにパージ流体導入口を開口させ、そ
のハウジング内周面と弁体外周面との間に、ハウ
ジングに設けたパージ流体導入口に通じかつ弁体
回転による切換えの途中の間常時上記主通路の流
入側開口と連通するように構成される包被状間隙
を、該弁体を包囲するように形成してなる溶融金
属保持器への流体吹込み用切換弁。[Scope of Claims] 1. A valve body rotatably supported within a housing provided with two or more different fluid inlets and having a main passage that communicates between one of the inlets and a separately provided outlet. A switching valve configured to switch the flow path by rotating the valve body, the purge fluid inlet is opened in the housing, and the inner circumferential surface of the housing and the outer circumferential surface of the valve body are connected to each other. In between, the valve body is connected to an envelope-shaped gap configured to communicate with the purge fluid inlet provided in the housing and constantly communicate with the inflow side opening of the main passage during switching by the rotation of the valve body. A switching valve for blowing fluid into a molten metal holder formed in a surrounding manner.
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP59058162A JPS60205075A (en) | 1984-03-28 | 1984-03-28 | Select valve for fluid blowing in molten metal holder |
US06/605,137 US4552334A (en) | 1984-03-28 | 1984-04-30 | Flow change-over valve for the blowing of fluids into molten metal vessel |
ZA843193A ZA843193B (en) | 1984-03-28 | 1984-04-30 | Flow change-over valve for the blowing of fluids into molten metal vessel |
AU27554/84A AU545661B1 (en) | 1984-03-28 | 1984-05-01 | Flow change over valve |
CA000453441A CA1212595A (en) | 1984-03-28 | 1984-05-03 | Flow change-over valve for the blowing of fluids into molten metal vessel |
FR8406876A FR2566087B1 (en) | 1984-03-28 | 1984-05-03 | FLOW SWITCHING VALVE FOR BLOWING FLUIDS IN A MOLTEN METAL CRUCIBLE |
KR8402395A KR890005125B1 (en) | 1984-03-28 | 1984-05-03 | Flow change-over valve for the blowing of fluids into molten metal vessel |
IT20798/84A IT1174078B (en) | 1984-03-28 | 1984-05-04 | FLOW SWITCH VALVE FOR BLOWING FLUIDS IN MELT METAL CONTAINER |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP59058162A JPS60205075A (en) | 1984-03-28 | 1984-03-28 | Select valve for fluid blowing in molten metal holder |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS60205075A JPS60205075A (en) | 1985-10-16 |
JPS6344995B2 true JPS6344995B2 (en) | 1988-09-07 |
Family
ID=13076290
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP59058162A Granted JPS60205075A (en) | 1984-03-28 | 1984-03-28 | Select valve for fluid blowing in molten metal holder |
Country Status (8)
Country | Link |
---|---|
US (1) | US4552334A (en) |
JP (1) | JPS60205075A (en) |
KR (1) | KR890005125B1 (en) |
AU (1) | AU545661B1 (en) |
CA (1) | CA1212595A (en) |
FR (1) | FR2566087B1 (en) |
IT (1) | IT1174078B (en) |
ZA (1) | ZA843193B (en) |
Families Citing this family (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4693274A (en) * | 1984-05-09 | 1987-09-15 | Instituto Mexicano De Investigaciones Siderurgicas | Device for the selective injection of an oxidizing gas or a carrier gas with or without carbonaceous material to a liquid metal bath |
US5443453A (en) * | 1994-04-21 | 1995-08-22 | Sherwood Medical Company | Stop-cock valve |
US5632816A (en) * | 1994-07-12 | 1997-05-27 | Ransburg Corporation | Voltage block |
USD379492S (en) * | 1995-06-05 | 1997-05-27 | Sherwood Medical Company | Stop-cock valve |
US5810326A (en) * | 1996-02-16 | 1998-09-22 | Mueller Industries, Inc. | Refrigerant powered actuated ball valve |
US6220566B1 (en) | 1996-02-16 | 2001-04-24 | Mueller Industries, Inc. | Incrementally positionable ball valve |
US5842683A (en) * | 1997-04-07 | 1998-12-01 | Upsoon Industrial Co., Ltd. | Structure of a ball valve especially used in food processing |
US6240946B1 (en) * | 1998-09-17 | 2001-06-05 | Tyco Flow Control, Inc. | Switch valve |
US6423143B1 (en) | 1999-11-02 | 2002-07-23 | Illinois Tool Works Inc. | Voltage block monitoring system |
US6832621B1 (en) * | 2002-03-08 | 2004-12-21 | Trans-Valve, Inc. | Transmitter isolation ball valve |
US20030175443A1 (en) * | 2002-03-14 | 2003-09-18 | Ghaffar Kazkaz | Method and apparatus for dispensing coating materials |
FR2848281B1 (en) * | 2002-12-06 | 2007-04-27 | Salvi Sa Soc | WOOD FAUCET |
US20070063582A1 (en) * | 2003-12-15 | 2007-03-22 | Bryar Barry J | Trailer isolator assembly |
CA2566766A1 (en) * | 2005-11-07 | 2007-05-07 | Gerry Cayer | Air brake safety device |
ITBS20070026U1 (en) * | 2007-07-23 | 2009-01-24 | Effebi Spa | SELF-REGULATED BALL VALVE |
US20100127561A1 (en) * | 2008-11-27 | 2010-05-27 | Robert Stephen Bell | Remote trailer brake activator |
FR3014993B1 (en) * | 2013-12-18 | 2016-05-27 | Ge Energy Products France Snc | VALVE WITH INTEGRATED ACTUATING DEVICE, IN PARTICULAR FOR A COMBUSTION SYSTEM |
DE102015106672A1 (en) * | 2015-04-29 | 2016-11-03 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | fluid control dial |
EP3199847B1 (en) * | 2016-01-28 | 2018-07-11 | MANN+HUMMEL GmbH | Fluid control device |
NO343144B1 (en) * | 2016-09-22 | 2018-11-19 | Fmc Kongsberg Subsea As | Subsea control valve |
GB2586482B (en) * | 2019-08-20 | 2022-08-17 | Singh Bath Charanjit | Modified ball valve |
Family Cites Families (30)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE36506C (en) * | J. knipscher in Bonn | Tap with drainage slide | ||
DE55651C (en) * | G. A. MÜGER in Rosieres-aux-Salines, Meurthe & Moselle, Frankreich | Rooster with emptying the chick | ||
US646104A (en) * | 1900-01-18 | 1900-03-27 | Frank M Faber | Blow-off valve. |
US667301A (en) * | 1900-11-12 | 1901-02-05 | Joseph F Dredge | Beer-faucet. |
US1493133A (en) * | 1920-02-11 | 1924-05-06 | Sykora Rudolf | Valve |
US1725337A (en) * | 1928-05-03 | 1929-08-20 | White Eagle Oil And Refining C | Valve |
US2318638A (en) * | 1942-03-10 | 1943-05-11 | Dorr Co Inc | Valve |
DE921239C (en) * | 1942-11-17 | 1954-12-13 | Daimler Benz Ag | Device for the cold start of vehicles that are driven by an internal combustion engine, especially aircraft |
US2661926A (en) * | 1950-08-10 | 1953-12-08 | Parker Appliance Co | Rotary plug type valve |
US2917069A (en) * | 1956-08-27 | 1959-12-15 | Bolton John W & Sons Inc | Adjustable port valve |
US3026894A (en) * | 1958-08-15 | 1962-03-27 | Sun Oil Co | Slurry stop plug |
GB864470A (en) * | 1958-10-31 | 1961-04-06 | Hartleys Stoke On Trent Ltd | Improvements relating to the feeding and distribution of flowing materials to tanks and the like |
DE1169233B (en) * | 1960-05-04 | 1964-04-30 | Hans J Zimmer Verfahrenstechni | Multi-way and mixing tap |
US3045692A (en) * | 1961-08-15 | 1962-07-24 | United Carbon Company Inc | Fluid seal valve |
US3282287A (en) * | 1963-08-09 | 1966-11-01 | Rockwell Mfg Co | Automatic valve lubricating device |
DE1894519U (en) * | 1964-03-28 | 1964-06-11 | Widenmann Max Armaturen | BARRIER FOR SOLID FLOWABLE GOODS, E.G. CEMENT, CONDUCTING PIPES. |
US3556360A (en) * | 1969-01-15 | 1971-01-19 | Nozzle Inc | Gas stopper for a ladle |
FR2141449B1 (en) * | 1971-06-01 | 1973-06-29 | Fourre Christian | |
CH539461A (en) * | 1971-08-02 | 1973-07-31 | Gema Ag App Bau | Powder spray gun for spraying different colored powders from a gun powder channel |
DE2427905A1 (en) * | 1974-06-10 | 1976-01-02 | Hoke Inc | Remote controlled valve union head - has valve alternately connecting second and fourth and third and fourth internal passages together |
US3957082A (en) * | 1974-09-26 | 1976-05-18 | Arbrook, Inc. | Six-way stopcock |
CH572588A5 (en) * | 1974-12-24 | 1976-02-13 | Fischer Ag Georg | |
US3985150A (en) * | 1975-06-03 | 1976-10-12 | Kamyr Valves, Inc. | Ball valve for valving abrasive fluids |
DE2644225A1 (en) * | 1976-09-30 | 1978-04-06 | Knorr Bremse Gmbh | BALL VALVE FOR PRESSURE PLANTS |
SE437710B (en) * | 1977-01-29 | 1985-03-11 | Tuchenhagen Otto Gmbh | PIPE CONNECTORS WITH LEAK CONTROL AND CLEANABLE LECK CHAMBER AND EXPORTED AS DOUBLE-SET COUPLING FOR PIPE PIPES |
DE2838983C3 (en) * | 1978-09-07 | 1986-03-27 | Klöckner CRA Technologie GmbH, 4100 Duisburg | Process for producing steel in the converter |
DE2902364C2 (en) * | 1979-01-22 | 1983-03-24 | Klein, Schanzlin & Becker Ag, 6710 Frankenthal | Transfer tube |
GB2072307B (en) * | 1980-03-25 | 1984-02-22 | Fairweather R M | Solating valves |
US4372338A (en) * | 1980-07-22 | 1983-02-08 | Dresser Industries, Inc. | High pressure valve assembly |
DE3143795C2 (en) * | 1981-11-04 | 1983-10-20 | Klöckner Stahlforschung GmbH, 8458 Sulzbach-Rosenberg | "Fluid supply valve" |
-
1984
- 1984-03-28 JP JP59058162A patent/JPS60205075A/en active Granted
- 1984-04-30 US US06/605,137 patent/US4552334A/en not_active Expired - Lifetime
- 1984-04-30 ZA ZA843193A patent/ZA843193B/en unknown
- 1984-05-01 AU AU27554/84A patent/AU545661B1/en not_active Ceased
- 1984-05-03 CA CA000453441A patent/CA1212595A/en not_active Expired
- 1984-05-03 FR FR8406876A patent/FR2566087B1/en not_active Expired
- 1984-05-03 KR KR8402395A patent/KR890005125B1/en not_active IP Right Cessation
- 1984-05-04 IT IT20798/84A patent/IT1174078B/en active
Also Published As
Publication number | Publication date |
---|---|
AU545661B1 (en) | 1985-07-25 |
ZA843193B (en) | 1984-11-28 |
KR890005125B1 (en) | 1989-12-11 |
CA1212595A (en) | 1986-10-14 |
IT8420798A0 (en) | 1984-05-04 |
IT1174078B (en) | 1987-07-01 |
KR850007087A (en) | 1985-10-30 |
US4552334A (en) | 1985-11-12 |
FR2566087A1 (en) | 1985-12-20 |
JPS60205075A (en) | 1985-10-16 |
IT8420798A1 (en) | 1985-11-04 |
FR2566087B1 (en) | 1987-05-29 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS6344995B2 (en) | ||
US4406666A (en) | Device for the gasification of carbon by means of a molten metal bath | |
CN108698051A (en) | Whizzer with batchwise discharge system | |
RU1838430C (en) | Device to blow metal melt with gas through a wall of metallurgic reservoir containing the melt | |
US4697615A (en) | Butterfly valve for controlling high-temperature fluid | |
JPH0199773A (en) | Rotary sliding closing device for metallurgical vessel and rotor or stator for such rotary sliding closing device | |
GB2028478A (en) | Sliding gate nozzle valve | |
US6251337B1 (en) | Apparatus and method for treating a particulate material within a rotating retort | |
KR890003473A (en) | Rotary Valves for Metallurgy Containers | |
SU1271376A3 (en) | Device for feeding fluent media to converter | |
US4583570A (en) | Liquid cooled ball valve | |
CN1076996C (en) | Process and device for closing a tap hole | |
US3827833A (en) | Rotor cooling device in an oscillation type compressor | |
JP2764615B2 (en) | Closure and adjustment mechanism for tapping of molten metal from metallurgical vessel | |
CN110042201A (en) | The agitating device of compound desulfurizing iron is stirred in a kind of coolable blowing | |
JPS5983874A (en) | Three-way valve | |
JPS60255258A (en) | Rotary sliding closing device for metallurgical melting vessel | |
SU489348A3 (en) | Airy lance | |
US4428564A (en) | Metallurgical vessel | |
RU1836434C (en) | Sealing unit of blast furnace lock chamber | |
US4597694A (en) | Device for introducing dosed quantities of pulverized materials into a carrier gas stream and application thereof to a distribution tank for pulverized materials | |
US4055335A (en) | Transformation of top-blown steel converter vessel to bottom-blown type | |
US4606531A (en) | Rotary joint apparatus for introducing and transporting several independent fluids and solid fines into a metallurgical converter | |
US5050847A (en) | Staged valve multi-hole injection block and method | |
US4799651A (en) | Device for introducing separated fluids through independent flow paths through bottom tuyeres in a rotating metallurgical converter |